egg art



Aug. 12, 1924. 1,504,881

C. EGGART snsbmrm MECHA ISM FOR Looms Filed Oct, '2, 1922 2 Sheets-Shut 1 v nwavroe Aug. 12 1924. 1,504,881

(3 EGGART sasmsms MECHANISM FOR LOOMS 7, 1922 2 Sheets-Sheet 2 Filed Oct.

Patented Aug. 12, 1924.

UNITED STATES SHEDDING MECH Application filed October To all whom it may concern Belt known that I, CARL EGGART, a citizen of the Republic of Switzerland, residing in Arbon, Switzerland. have invented certain new and useful In'iproven'lents in Shedding Mechanism for Looms, of which the following is a specification, reference being had to the accompanying drawings, forming a part hereof.

Thel general'object of this invention is to enable the speed of operation of looms to be increased as compared with the looms as heretofore constructed. Tothis end improvements have been made in the several mechanisms involved in the operation of shedding. The heddle frames are so interconnected and actuated that' two heddle frames, moving in opposite directions, are counterbaf'fiinced one againstthe other. mechanism by which the movement of the heddle frames is selectively effected under the control of the pattern mechanism is so constructed that it is quickly and certainly responsive and the pattern controlling tie-- vices are so constructed and arranged that the needles which. co-act with the acquard cards, are moved positively in both directions. The invention will be explained more fully hereinafter with reference to the accompanying drawings trated and in which v Figure 1 is a partial view in front elevation of so much of a loom as is necessary to enable the application of the present improvemcnts to he understood.

Figure 2 is a detail view on a larger scale of one of the jacquard cards as used in the embodiment of the invention illustrated in Figure 1.

Figures 3 and 4 are detail views illnst'rab ing other arrangements of the jacquard cards and needles;

Figure 5 is a view similar to Figure 1 but showing a slightly difi'erent form of the devices for selectively actuating tlreheddle frames. v

The heddle frames (in, which may be ofany usual or suitable construction and may be guided in any usual or suitable manner, ex

cept as hereinafter indicated, are interconnected in pairs, inendwise relation, as shown in Figures 1 and 5,-so that the two heddle'frames of the pair shall be in equilibrium, the one counterbalancing the other,

so that but little power shall be required to in which it is illus- ANONYME ADOLPHE SWITZERLAND.

ASSIGNOR TO SOCIETE D, A CORPORATJON 0F ANISll/I son toners.

1, 1922. seal No. 59294:.

move them and the mechanism for moving Ila-in fill'lll he einxple and light in weight, developing but little friction lobe UYQFLUU'HE. when-l llll' speed of niowinent can be greatly i l'itlt'lillatl as compared with. looms constructed as liyrelof'om. Preferably the desired intercomuni-lion of the heddle 'f'zllllti-a is cilia-red th ough gears and racks. shown in Mr l. in whit: the lit-(idle frames are rllsnoswl in endw relatiom the end memliwa: are fm'ii'ied n .i rat-la: teeth. as at ('1 the racks being engagei'l by gears I) which 211C suitably mounted. on the frame 0 of the loom, ('lll'l the several gears l) are also wigagul by rack teeth d ioru'ied on a bar 1/ which capable of longitudinal movement and. in the preferred arrange ment, ilsrlt' rcci nocated longitudinally by the urinating n'narhanism. Obviously, in order to secure the desired counterbalancing' of the licddle frames, the rack teeth a are formed opprwitely on the two heddle frames so that, through the engagement with the internlediale gear 7). our heddle frame shall move up as the other moves down. If the counterlmlam-ingof the heddle frames not lo be accmnplished in the case of a sin le 'heddle frame, the operation of the heddle frames through gears as described will be found to be highly satisfactory and in such case, as will be obvious, the racks may be disposal as most crmveniei'l t.

For the ac uation of the heddle frames through the ilesriribed devices, the rack bar cl conn ted l a. link (1 with a threearnied ler n is oscillated through the seleetiri 1 a now to be described, an der the o of the pattern mechanism, adjustably connected to the so t the throw or e11 when! of the rack bar can be r filed shedding 'mechae nism hertctore de' i, it has usually been possible f r the selective device's to be set for a new operation only when the. previous heddlr movement has been completed. This has no only item. the possible speed of the loom low but it be involved liability In pal tern con t" to uneven a: l \Jli fiiJ Y e; ration of the selective dev ll 1m hamsni new to be tl(S(' l'rmil c e virtues are set or posit-ioi'ie'i during iim im'vementl of the heddles. The sgwiil til the loom 1Sitl1tii3 fore accelerated sun-c *l no longer necessary to await the completion of the movement of the'heddles before positioning the selective devices for the next operation and the positioning of such selective devices he 16 a cam disc 2', mounted in the'jmusing and rotated, throu h mechanism not necessary to be shown or escribed, in-synchronism with the loom. In the same cam disc 2" is formed another cam groove 1? engaged by a roller lc of a vertically reciprocatin frame or actuator is provided with shoufii by which the slides or connectors g, g are lifted in the upward movement of the actu ator k. A spur is carried by the actuator k co-operates, when the actuator is moved down, with a corresponding spur f of thethree-armed lever f to lock the same in the position to which the lever has been swung, whether to the right .or to the left.

Mounted movably on the actuator k are the horizontally slidable selectors 1, only one of which is shown, there being a plurality of selectors for the control of a plurality of sets of heddles. These selectors are controlled b a pattern mechanism to be described, t rough links Z the selectors being moved to the right or to the left, so that their ends shall stand above the corres onding connectors g and g, for movement ownward of the corresponding connectors and for the swingin of the lever f in one direction or the ot er and the corresponding movement of the connected heddle framesup or'down as the case may be.

When the parts are in the positions repre:

sented in Figure; 1, with the selectors Z standing over the right hand connectors g, the downward movement of the actuator is will move downward the right hand connectors 1g, swinging the three-armed lever f to the eft, raising the right hand heddle frame and lowering the left hand heddle frame. As soon as this movement has been completed the cam groove 11 of the cam disc 21' will swing the carriers h. and h outward, thereby swinging the connectors gan d g at their upper ends entirel free from the selectors Z, in whichever irection such select tors may have been moved, whether to the 6 time the selectors Z will be raised, clearing ers k and k 7 right or to the left, and in the followi g,

all of the connectors, so that when the actustor has again reached its highest position the carriers hand 71/ will have been 'swung inwardly, thereby placing the connectors again in operative relation with the selectors. Meanwhile the selectors themselves, under the control of the-pattern mechanism, will have beenjset or positioned for a new operation sothat the entire mechanism will be ready" immediately for a new 0 eration without requiring the positioning 0 the se- 'lective devices to await the completion of movement of the heddie frames. It will be understood, of course that in the upward movement of the actuator k the lever 'f is 99 swunglback to its normal or neutral position and t at the heddle frames are restored to the closed-shed position, in readiness for the next operation. f

' For efl'ective co-operation with the devices already described and to further promote speed and certainty.in o eration, the pattern or jacquard devices it; cont llin the selective devices above described have en improved so that: the needles, b which the selectors above mentioned are s ifted, shall be moved by ositively acting mechanical devices in oh directions, instead of in one direction only as heretofore. In ac cordance with the invention theregare provided two needles in operative relation with each selector, that is, two sets of needlesin .opfrative relation with the set-10f selectors.

T a c "thesel-ected needles of one set move freely through the per of the correspond ing card or part of the cifFd-andjhe coi responding needles of the other set are moved positively by contact with the blank or imperforate portions of the card. Since the two corresponding needlesare coupled tomove about a common axis and are operatively connected'to the corres' nding selector, each selector will be move positively in one direction-or the oth r at each op oration. In the embodiment of this art of the invention shown in. Figure 1 the two needles (due only of each set being shown), being suitably supported in a frame at, are operatively engaged, on oppositesides of a common axis, with the link l which ,asheretofore explained, controls the position of the selector Z. As shown each needle m, or an extension of each needle, formed with in in rash tooth m'i tho two rut/ha hi-iiig L'Ji by :1 gem" sogini-nt o nhivh in {not him an arm 0' to which the link Z is coinnwtiz i In this instance the two rows of port on lions, which co-aot with the two :if'i'r-I ot nootllvs, are shown as fOllilPil in :1 hinglo 21rd 1,: nhich is supported li t a ruin Lllllfll' (,ll'uin i flttllit to which 2! stop l1} stop motion of rotation anti :1 to anti B ro nmtion urn lllll ttl'lttl as usual n tlQVitftS oil tlii rhzirnotm'. Tho 'it-rfoiutions 1 of tin; ne sot or row and tho pol'i'oi'mions n of tho othr-i' St? or row haw opponlitn llitii] in thov othnr sot or row liiltiil-{F or importomto porlions as at p and. p. 'llwrvfom, whr-n tho card is moved in tho usual nnmnor toward the noodles, thoso noodles 'm which vorrespontl to tho blanks or iinporlomtv pun tions 1) will ho moved.positively anti the ioi'rospontling noodles in l ving 'ni-tniiiiotl to [now l'rooly through tho :soiroqionf g hohas of tho othm' Ftl' or row.

in iii-1v mun nor. vvrinin oi" the ilt'tillth we Hi positii't-ly whilo the not): sponiliiw m are pcrniittml to mow, through iilt' pmiorzitioim of the othvi' rat-t1 or row of huh) As the two noodles in ttttl] pail, hmawor, are positivvly zinil opvrntiroly ltvilii ltfii'iii with tho some link I", tho l,'l"l"lt:-i)t !ttlint}: 5-1: lot-tire rhwit-o J of the shuttling inw lltlltl lllljf inn-h li ing torment with lions tIlltl hhinhs for t'U-H t'1'Ztll,i)ll with tor responding sols ol' nvoilhwl In) sal ent Ili will hi": ohvions. :intl HS FllUWl! in l lo -i. tin nowthw m might; ho itlltlil,itti hop iintzillfq for (urinal-ration with thljtlt'ttlilil or pnt torn tsirtls.

In tho vlllllutllil'lt'lil of tho iiu'wi: mo FEUWK n in l ip nro l, thu SL'ltL'lOl Z and tho tuiittt'- tors 5/ ttlltl g" :n'o :irrnngml to i ihlm whih in tho t'tilltlllltllt'rlt SlIOWH in Fio in'v :3 nor" to ho tlrnrlihvil, tho HlPViUl'S zinil lilo minnnrtol's an pivoted. Tho tlil'uo-nin'lrd lover j is t nllttlvtl no brim-v by a link a with tho rat-h lint tl', lint itn arms ni'o provithrl with shouhh rs f and ,4 forci'wo'pvr:1tion with this rvspvt-tive connector? 9 and f whii h iii-o pivotal on tho warriors 1'4" :intl la", tho lulit'i being pivoted upon the t-Hhh' :i\i;-t with l lt luvs-r Tho vxll'vntitiv: of tho mini-sh fr and it are oonni-t-twi h linhs i!" am! It n ith the two shortvr arms of tho iiEWWlHlilHi lover f hit-h in nivotml on illt homing anti has n oli'es' 2 whit-h rngrugm tilt (:lilt groove oi the tilii': i 'lhi: lwli umnh o nnootm's o and if nro :lhfllttl to va-ngio 1'3' and 5" L in an tifi ltfliitillili rim-tor n i l k'lltlii inr IiciitillOb' m," an} M olf neeclhasi may be directly v lq'tfl i' I" in also proriilotl with two notches, in; :it ininptt-tl to be engaged h a dog 7" Ji'hirh t tSi Ol'tll on, the housing and Ctll'liQS ii EHlivl in engagement. with the train ij l l i l of the can: disc 2', so that tho so hwtor i7. hwin-(l in one position or the other rxcvpt during such portion of the rotation of the (HID disc as is necessary for the opera tion of the selector hfy the pattern. (levicm.

in tho operation of this embodiment of the invention it will be understood that through the operation of the selector I one of the connectors g and 51* is moved as in tho (.358 of tho selector M, on its pivot into operative relation with the correspontiinn shoulder, f. of the three-armed lever j. The corresponding carrier, as h is then gnoveti by the actuator It? so that the corn Iii-('10P p, through Contact with the shonlth-r will swing the lever f in the propor rlh itt'iiml, as toward the right, wherein the hovhlio frames will receive the desiror' iilGYE- illllli. In the continued operation the other uonnoctor, {1S will, when ith as been moved into opomiivo relation in tho niovonnint of the @eloi tor 2 then unloo ed, canoe the lover f to in? swung again to nmtrni position, all mrts being then in readiness for another operation as determined by the movement of the selector under the influence of the pattern mechanism.

It will he mnlorstmnl that various changos trim ht: made. in details of construction and :u'rni'igermimt to suit different conditions of one :Ulti that the invention. except; as pointed out in this (linin is not limited to tho gnartit-nnir r-tmstrnction and afrangoniont shown and described herein nor to the combination in one loom of all of the foatnrvss of inr prownnnitn horoin described. Such several 'iiwiiizron :V-o-wwrnto in the wrooinplishlnont of th s m neral purpmo of the invention. but illill feature may ho nsoil with mlvanmgzeons insults independently of the othe ih rmihml i'r-rn iiiea.

l Llilllll as any invention:

1" in L loom. the combination of two hmhllo frinnt-s in endwiso relation, each frame having two vertical rack bars, the riith heirs of one frame facing: to one side nnil the rank bars of the other frame faoing to the other side, a gear engaging both of the Mint-tint rack bars of the two frames, othvr gears engaging respectively the other ltlt'k lJZllS oi the too t'rinnes :1. common rack bar vngaging all of the gears. a d means to rot-iprornte said common li f'ii'.

'3. ln a loom. the combination trzune, a lever operatively COHHE. .7 htnltile frame. :1 constantly UPi nting no tuutor for said lover, a, connoot 1' through whit-h movement is transinitteo from the tn-nor to the lover, means it morn tho it interior into anti out of one It: relation with this. ievor, an inrioponthrntiy m.ov--.

able selector to determine the operation of the connector, and means to operate the selector.

3. In a loom, the combination of a heddle 8 frame, a lever operativeiy connected to the (lle frame to move the some in one dimotion or the other, a constantly operating actuator for said lever, connectors through which movement is transmitted from the ac- IO tuctor to the lever to move the same in one direction or the other, means to move the connectors respectivelg into and out of operative relation wit the lever, an independently movable selector to determine the 15 operation of one connector or the other, and

means to operate the selector.

4. In a loom, the combination of a heddle e, a lever operatively connected to the heddle frame, a constantly. operating ac- 80 meter forsaid lever, a, connector through which movement is transmitted from the actuator to the lever, a carrier for said connector, means to operate the carrier to move the connector into and out of operative relation with the lever, means to operate the carrier, an independently movable selector to determine the operation of the connector, and means to operate the selector.

5. In a loom, the combination of a huddle frame, a lever operatively connected to the heddle frame, a Constantly operating actuator for said lever, connectors through which movement is. transmitted from the actuator tothe lever, carriers for said connectors respectively, means to operate the carriers to move one or the other of the con-- neotors into and out of operative relation with the lever, an independently movable selector to determine the operation of one carrier or the other, and means to operate the selector.

This specification signed this 30th day of August D. 1922.

V CARL EGGART' 

